Level.



G. W. LYONS.

LEVEL.

APPLICATION FILED APR. 16. 1915.

Patented Nov, 21, 1916.

I]? oenzor Tfz'tnesses STAT AEN oriucE.

GEORGE W. LYONS, OF ORANGE, CONNECTICUT, ASSIGNOR 0F THREE-FOURTHS T0ABRAHAM L. NO'I'KINS, JAMES A. NOTKINS, AND MATTHEW A. NOTKINS, ALL OFNEW HAVEN, CONNECTICUT.

LEVEL.

incense.

Application filed April 16, 1915.

To all whom it may concern:

Be it known that I, GEORGE IV. LYONS, a citizen of the United States,residing at Orange, in the county of New Haven and State of Connecticut,have invented certain new and useful Improvements in Levels, of whichthe following is a specification, reference being had therein to theaccompanying drawings.

My invention relates to a new and improved level, having for its object,among other things, to so construct the same that it may be collapsibleand occupy the minimum space when not in use.

To these, and other ends, my invention consists in the level, havingcertain details of construction and combinations of parts, as will behereinafter described and more particularly pointed out in the claim.

Referring to the drawings, in which like numerals of reference designatelike parts in the several figures, Figure l is a perspective view of myimproved level complete; Fig. 2 is an enlarged fragmentary View thereof;and Fig. 3 is an end view of the central section.

My improved level is constructed with three sections 1 and 2-2, all ofwhich are provided with end caps-3 to minimize the wear thereon. Thesection 1 is provided with a spirit level 4 and sections 2 with spiritlevels 5, all being of the ordinary constructien and mounted withinapertures 6 as is customary.

Extending loosely through an aperture in the section 1 is a tie bar 7terminating at each end in a threaded shank 8 which rojects beyond theend caps 3 and upon wfiich are the nuts 9 and washers 10. Also fixed inthe opposite ends of the section 1, and projecting beyond the caps 3,are the dowel pins 11, which project into blocks 12 fixed in thesections 2-2. These dowel pins when they register with the opening inthe blocks 12, as shown in Fig. 2, insure the proper alinement of thesections, which are then secured together by the washers 10 and nuts 9,which latter are threaded upon the shanks through the openings 13.

.In operation the sections are assembled Specification of LettersPatent.

Patented Nov. 21, 1916.

Serial No. 21,808.

by passing the shank 8 of the tie bar 7 through the end of the section 2and permitting the dowel pins 11 to enter the blocks 12, afterwardplacing the washer 10 and nut 9 upon the shank and tightening the latterby a wrench that operates within the opening 13. WVhen the sections aresecured in this manner they all become a unitary structure and arecapable of use as is the usual level. The level is taken down, forconvenience in transportation or for other reasons, by separating thesections 2 from the section 1, thus materially shortening the length ofthe level and the space that it would otherwise occupy.

In minor details my invention may be considerably modified, and I wouldtherefore have it understood that I do not limit myself to the exactconstruction herein shown and described, but claim all that falls fairlywithin the spirit and scope of my invention, as set forth in theappended claim.

Having described my invention, what I claim as new and desire to secureby Letters Patent, is

In a level, the combination with a central section, having alongitudinal aperture therethrough; of a member, substantiallyrectangular in cross section, within said aperture, and by itsengagement therewith held against rotation, said member having athreaded shank at each end which projects beyond the ends of saidsection; a dowel pin fixed in each end of said section and projectingoutwardly therefrom; companion end sections, each having a transverseopen- Copies of this patent may be obtained for five cents each, byaddressing the "Commissioner of Patents, Washington, D. G.

